Troubled actress Lindsay Lohan has shared a video of a gruesome game of 'dare' in which one of her friends has his ear pierced with a knife.

The Mean Girls star filmed the footage herself during a gathering of her friends in New York City and it aired as part of her reality TV show Lindsay.

In the clip, one of Lohan's pals is dared to have his ear pierced, and he is heard screaming and cursing as another man uses a knife to carry out the challenge.

In the episode, Lohan, who completed her sixth stay in rehab last summer, is also seen talking about the challenges she faces as she attempts to stay sober during nights out with friends who are all drinking alcohol.

She says, "I feel like I can go out to clubs. And I'm so social, anyway, too. When I go out, I'm talking the whole time, outside, smoking a cigarette, going back inside, and I dance all the time when I go out. I love dancing. So I have other things that I find more exciting than sitting and just drinking... I know what the demons are that are going to be in that kind of energy in that place.

"Like if it's a club or something, I know what I'm tempting. But I can hang around people that have drinks. I feel comfortable with not being tempted to."

In a previous episode of the show, Lohan confessed she had suffered a relapse and indulged in some wine.